Gate-actuating mechanism.



Patented Feb. 6

5 SHEETS-SHEET 1.

0. S. SAND.

GATE AcTuATING MECHANISM. APPLICATION FILED JULY 29,1916.

nu: Nbnms #Ermes ca. mmmurmi. wasmmmm, p. c.

. 0. S. SAND.

GATE ACTUATING MECHANISM.

APPLICATloN FILED 1uLY 29, 1916.

1,214,594. j Patented Feb. 6,1917.

' 5 SHEETS-SHEET 2.

0. S. SAND. GATE ACTUATING MECHANISM. APPLICATION FILED xuLY 29. 1916.

1 ,214,594:. Patented Feb. 6,1917.

5 SHEETS-SHEET 3.

lrmiiiiii figg,"

m: mmm rncns co.4 wow-n man wAsM/Namu, DA c.

O. S. SAND.

GATE ACTUATING MECHANISNI.

APPLICATION FILED IuLY 29,I916.

1,214,594. Patented Feb. 6,1917.

5 SHEETS-SHEET 4- .S ww,

-ms :mums uns ca 0. S. SAND.

GATE ACTUATING MECHANISNI.

APPLICATION FILED JULY 29.1916.

1,214,594. Patented Feb. 6,1917.

5 SHEETS-SHEET 5- 1u: mmm: sans cu.. www.: mm., wnsamcmm a. c.

OSCAR S. SAND, OF GOOIDRIDGE, MINNESOTA.

GATE-ACTUATING MECHANISM.

Specication of Letters Patent.

Patented Feb. 6, 1917.

Application filed July 29, 1916. Serial No. 112,113.

To all whom t may concern.'

Be it known that I, OSCAR S. SAND, a citizen of the United States,residing at Goodridge, in the county of Pennington and State ofMinnesota, have invented certain new and useful Improvements in Gate-Actuating Mechanism; and I do hereby de- Clare the following to be afull, clear, and exact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame.

My invention relates to gate actuating mechanism, and particularly toload 'operated mechanism for swinging gates. To the above end, generallystated, the invention consists of the novel devices and com'- binationsof devices hereinafter described and defined in the claims.

In the accompanying drawings, which illustrate the invention, likecharacters indicate like parts throughout the several views.

Referring to the drawings, Figure 1 is a fragmentary plan view of afence having a gate opening, a swinging gate for closing the gateopening and the improved gate actuating mechanism arranged to open andclose the gate; Fig. 2 is a fragmentary vertical section taken on theline 2 2 of Fig. l, and illustrating by means of broken lines, a vehiclewheel moving toward the gate and about to pass over one of the wheelengaging levers to open the gate; Fig. 3 is a fragmentary view, partlyin side elevation, and partly in vertical section of certain of theparts shown in Fig. 1; Fig. 4l is a fragmentary plan view of certain ofthe parts shown in Fig. 1 with the exception that the gate is open andcertain of the parts moved into closer relation for the sake of space.Fig. 5 is a vview in side elevation of the track box shown at the leftin respect to Fig. 2, but with a vehicle wheel moved nearer to the gate,and depressing the lever suiiiciently to compress the spring, thefurther movement of the lever necessary to trip and release'the springto open the gate, being indicated by means of broken lines; Fig. 6 showsthe vehicle wheel moved still nearer to the gate, and with the springreleased and expanded to substantially its full length, the furtherexpanding movement of the spring will release the same, and permit theseveral parts to be returned to normal positions; Fig. 7 is a view inside elevation of the track box shown at the right with respect toF ig.2, but with the vehicle wheel moved through the gate opening, engagingthe respective lever and depressing the same to compress the spring, thecompressed spring, when released, will close the gate; Fig. 8 shows thevehicle wheel moved still farther away from the gate and depressing thelever suliiciently to have released the Vspring' and closed the gate, afurther depression of the lever will permit the several parts to bereturned to normal positions; Fig. 9 is a fragmentary detail view ofcertain of the parts shown in Fig. 5 on an enlarged scale, some partsbeing shown in longitudinal section, and some parts being pulled apartto more clearly show the same. Fig. 10 is a fragmentary perspectiveview,

with some parts sectioned on the line 10-10 of F ig.'3; Fig. 11 is adetail view, principally in section, taken on the line 11-11 of Fig. 2;and Figs. 12 to 18, inclusive, are

'fragmentary detail views, partly in plan and partly in horizontalsection with some parts indicated by means of broken lines. Figs. 12,13, and 14 show the gate respectively closed, opened, and then closed byvehicle moving in the direction of the arrows marked thereon, and shouldbe read respectively in Vconnection with Figs. 2, 6, and 8. Figs. 15 to18 inclusive show the gate opened and closed by vehicle moving in thedirection of the arrows marked thereon. Fig. 15 shows the gate open withcertain of the parts about to be returned to normal positions. Fig. 16is like Fig. 15 with the exception that the parts have been returned tonormal positions. Fig. 17 shows the gate closed with certain of theparts about to be returned to normal positions. Fig. 18 is like Fig.A 17with the exception that the parts have been returned to normalpositions.

The numeral 1 indicates a fence having a gate opening 2 located betweengate posts 3 and'l. The gate opening 2 isA normally closed by a gate 5secured to the gate post 8 by a pair of vertically spaced hinge brackets6 for horizontal swinging movement. Each hinge bracket 6 comprisespivotally connected members, one of which is rigidly bolted to the post3 and the other of which is rigidly bolted to the inner' upright endmember of the gate 5.

The gate is held in a closed position by aspring pressed lock bolt 7mounted in the front upright end member thereof for horizontal slidingmovement longitudinally of the gate. The outer projecting end of thislock bolt is adapted to enter, when the gate is closed, a socket in alock plate 8 secured to the post Oppositely extended cam surfaces 9 onthe lock plate 8 are alternately engaged by the lock bolt 7, during theswinging Vmovement of the gate 5 toa closed position, to retract saidbolt and cause the same to ride over the lock plate 8 and enter thesocket thereof. Connections for releasing the lock bolt 7 willhereinafter be described. rlhe parts, thus far described, may be of anydesired construction.

Concentric rock shafts 10 and 11, the latter of which is tubular, areaxially alined with the pivotal connections between the members of thehinge bracket 6. The shaft 10 is journaled in the shaft 11 and projectsthrough both ends thereof. A segmental coupling head 12 is pivotallysecured for horizontal movement to a bracket 13 which in turn is rigidlybolted to the rear upright end member of the gate 5 just below the upperhinge bracket 6. The pivotal connection between the coupling head 12 andbracket 13 has a bore axially alined with the rock shaft 11 and whichbore affords the journal for the upper end of said shaft. The couplinghead 12 has only a very limited movement in respect to the gate 5 inboth directions from a normal position as the same engages the gate as astop. The coupling head 12 is yieldingly held in normal position by thespring of the lock bolt 7 through connections which will presently bedescribed. l

A box 14 is located just below the surface of the road bed, under theshafts 10 and 11, and into which box said shafts project. Both shafts 10and 11 have limited endwise movement, the one with respect to the other.ligidly secured to the upper end of the rock shaft 10 is a horizontalarm 15 having at its free end a depending linger 16. 0n the lower end ofthis lever 10 is a horizontal crank arm 17 which is located in the samevertical plane with the arm 15. The lever 11 has rigidly secured to itsupper end a relatively short arm 18 which moves in a horizontal planebetween the coupling head 12 and arm 15. A crank arm 19 is also rigidlysecured to the lower end of the shaft 11 and is located in the samevertical plane with the arm 18. Normally the arm 15-18 and the-arm 17-19extend at right angles to each other, and in diverging relation with thevgate 5 when the same is closed.

On the upper face of the coupling head 12 are two pairs of concentricearn lugs.

The inner cam lugs with which the arm 18 coperates, are indicated by thenumerals 20 and 21, and the outer cam lugs, with I which the linger 16coperates, are indicated by the numerals 22 and 23. The cam lugs 20 and22 are in substantially longitudinal alinement with the gate 5, and thecam lugs 21 and 23 extend substantially at right angles thereto, and arelocated one on each side of the gate.

Located ina the wheel track nearest the fence post 3, is a pair of trackboxes 24 and 25. These track boxes are located a considerable distancefrom the gate 5, and one on each side thereof, with their tops flushwith the road bed. Levers 26 and 27 are intermediately fulcrumed on thetops of the boxes 24 and 25 respectively. rl`he upper ends of theselevers 26-27 are relatively wide and extend transversely of the wheeltrack in which they are located so as to be easily engaged and operatedby a vehicle wheel Z. The lower ends of the levers 26-27 extend into therespective boxes 24 and and work through slots 28 formed in the topsthereof. Conduit sections 29 connect the track boxes 24 and 25 with thebox 14.

The inner ends of a pair of oppositely extended long rods 30 and 31 arepivotally attached at their inner ends to the crank arms 17 and 19respectively. These rods 30-31 extend through the sections of theconduit 29 and through short tube sections 32 secured in the ends of theboxes 24--25 which afford bearings for said rods and hold the same forstraight endwise movement.

A iexible section 33 in the rod 30 comprises four horizontally spaceddisks 34- 35-36 and 37 axially alined with the rod 32, two pairs ofvertically spaced overlapped rods 38-39, and a relatively heavy coiledspring 40. The disks 34 and 36 are secured respectively tothe inner andouter sections of the rod 30. The rods 38 work through apertures in thedisk 37 and connect the disks 34 and 35, while the rods 39 work throughapertures in the disk 35 and connect the disks 36 and 37. The spring 40surrounds the rods 38 and 39 and is arranged to be compressed betweenthe disks 35 and 37. A cable 41 connects the lower end of the lever 26to the disk 36, and its intermediate portion runs under a guide sheave42 journaled on a bracket 43 in the box 24.

A relatively light coiled spring 44 anchored to the disk 36 and abracket 45 secured in the box 24 returns the rock shaft 10, rod 30, withthe several connections of its flexible section 33 and the lever 26 tonormal positions. A gravity lock dog 46 pivoted to the bracket engagesthe disk 34 when in anormal position and holds the same together withthe long section of the rod 30 and rock shaft v10. in ,theirnormal 13epositions. The spring 40 while being placed under tension by themovement of the lever 26 caused by the wheel Z passing thereunder reactsagainst the disk 35 as a fixed base of resistance. At this time, thedisk 35 is held by the lock dog 46 through the rods 38 and disk 34.

During-the latter part of the downward movement of the lever 26, thelock dog 46 is tripped out 'of engagement with the disk 34 by a cibleconnection 47 between the disk 36 and bracket 45. Just before the lockdog 4G is tripped out of engagement with the disk 34, the disk 36engages a gravity lock dog 48 pivoted to the bracket 43 and is heldthereby. When the lock dog 46 is released, the compressed spring 40expands and acting on the disk 37, as a fixed base of resistance, drawsthe long end of the rod 30 awayV from gate 5. This movement of the rod30 swings the gate 5 open and away from the approaching vehicle throughthe following connections, towit: crank arm 19, rock shaft 11, arm 15,and nger 16 interlocked with the cam lug 22 on the cam head 12. Duringthe initial movement of the coupling head 12, the finger 18 is uncoupledfrom the head 12 by an endwise movement of the rock shaft 11, to carryIsaid finger out of engagement with the cam lug 20. This movement of therock shaft 11 is imparted by a cam lug 49 on the bottom of the boX 14with which the crank arm 17 engages during the movement of the couplinghead 12 with respect to the gate 5'.

During the nal expanding movement of the spring 40, the disk 35 engagesthe lock dog 48 and cams the same out of engagement with the disk 36.Vhen the disk 36 is released, the spring 44 returns the several parts,heretofore mentioned, back to normal positions.

When the gate 5 is swung open, as just described, the same isauto-matically locked in open position by a latch bar 5() andcooperating lock bar 51. The latch bar 50 extends transversely of thegate 5 and is intermediately pivoted to the top rail thereof, while thelock bar 51 is rigidly secured to the post 3 and extends transversely ofthe tence 1 on each side thereof. The latch bar 50 has ratchet-like ends52 which alternately engage the ends of the lock bar 51 and interlocktherewith. The initial engagement of the latch bar 50 with the lock bar51 rocks said latch bar on its pivot to permit the respective tooth tofirst pass, and then interlock with, the lock bar 51. A pair of links 53connect opposite ends of the latch bar 50 with the coupling head 12 atdiametrically opposite points, and yieldingly hold the latch bar 50 innormal position.

The lock bolt 7 is retracted to release the gate 5 from the 'post 4during the movement of the coupling head 12 with respect to the gate, bya rod 54 pivoted thereto, and connected by branch cables 55 todiametrically opposite points on the coupling head 12. AAn eye 55 on thetop rail of the gate 5 through-which the rod 54 works, holds said rodfor straight endwise movement. Through the rod 54 and branch cables 55,the coupling head 12 is yieldingly held in a normal position by thespring ot the lock bolt 7.

`With the gate 5 locked to open by the latch bar 50, the vehicle canmove through the gate opening 2 and the wheel Z thereof engage the lever27 and close the gate. The connections between the lever 27 and rod 31are identical with the connections between the lever 26 and rod 30 andcorresponding parts are designated by like numerals with the numeralsdesignating the parts between the lever 27 and rod 31 having theexponent a added. in closing the gate, the action oit the respectiveparts are identical with the parts used in opening the gate. The initialmovement of the lever 27 in the opening of the gate, turns the couplinghead 12 irst with respect to the gate 5. This turning of the coupling'head 12 unlatches the 0'ate and moves the rock shaft 10 endwise by theengagement of the crank arm 17 withk the cam lug 49a to uncouple the arm18 from the head 12. Further movement o'l the 'coupling head 12 willengage the gate 5 and close the same.

What I claim is:

1. The combination with a swinging gate, of mechanism for swinging thegate in both directions, and through normally interlocked members, oneof which moves with the gate and the other two of which are alternatelyreleased from' the third member by reverse swinging movement of thegate.

2. Iihe combination with a swinging gate and a coupling head connectedthereto, of reversely acting arms both having normal interlockingengagement with the coupling head, and means whereby the initialmovement of one of the arms will uncouple the other arm from thecoupling head.

3. The combination with a swinging gate and a coupling head carriedthereby, of a pair of arms normally interlocked with the coupling headand arranged to open the. gate, the one in one direction and the otherin the opposite direction, connections for independently operating thearms, and means for rendering one of the arms inoperative while theother arm is operating to open the gate.

4. The combination with a swinging gate and coupling head carriedthereby, of a pair of arms normally interlocked` with the coupling headand arranged to open ythe gate, the one in one direction and the otherin the opposite direction, connections for independently operating thearms, and augate, the one in one tomaticmeans for rendering one of thearms inoperative While the other arm is operating to open the gate.

5. The combination with a swinging gate and a coupling head carriedthereby, of a pair'of arms normally interlocked with the coupling headand arranged to open the gate, the one in one direction and the other inthe opposite. direction, connections for alternately operating the armsto open and then close the gate, and means for renden ing one of thearms inoperative While the other arm is operating to open the gate.

6. The combination with a swinging gate Aand a coupling head carriedthereby, of a pair of arms normally interlocked with the coupling headand arranged to open the direction and the other in the oppositedirection, connections for alternately operating the arms to open andthen close the gate, means for rendering one With the coupling head andarranged to openV the gate, the one in'one direction and4 the other inthe opposite direction, connections for independently operating thearms, means operating during the movement of the coupling head withrespect to the gate for rendering one ot' the arms inoperative While theother arm is operating to open the gate.

In' testimony whereof I aiiiX my signature in presence of two Witnesses.

OSCAR S. SAND. Witnesses:

NICOLAY BUNDHUND, H. B. RooKIN.

Copies of this. patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

